JPH0689898B2 - Frame leg device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a relatively heavy frame leg device such as a so-called furniture-like kotatsu.

(B) Conventional Technology Conventionally, a leg fixed to a frame and freely bendable is disclosed in, for example, Japanese Utility Model Publication No. 50-44400. However, such a bending mechanism normally uses a thick metal plate in order to provide strength, but the edges of this metal plate are exposed to the outside and the foot or hand touches them and scratches them, or the heater heat Due to the high temperature, there was a risk of burns.

(C) Problems to be Solved by the Invention For this reason, it has been proposed that the bending mechanism is covered with a resin cover, but when the legs are bent, the space between the cover and the bending mechanism is exposed, and the appearance becomes particularly poor. When the legs of the frame are bent and leaned against a wall or the like, the above-mentioned space is more visible from the outside, which is not suitable for so-called furniture-like kotatsu, which is based on a high-class feeling. In addition, the above-mentioned space was uncomfortable because dust with a spider web entered it.

According to the present invention, the space formed between the upper hinge body and the upper hinge body after the upper hinge body is housed in the upper hinge cover is closed by a decorative cover, so that the leg body looks good when folded. .

(C) Problem to be Solved by the Invention According to the present invention, a plurality of inner rails, a plurality of outer rails that are formed in a rectangular shape to surround the outer sides of the inner rails, and a leg mounting in which the ends of the outer rails are fixed. A frame body formed of metal fittings and a leg body fixed to the leg mounting metal fittings and pivotally attached so as to be bendable. The leg body includes an upper hinge body having a pin hole on the lower front side of the opposing outer wall. An upper leg body including an upper hinge cover for housing and enclosing the upper hinge body, a bolt for fixing the upper hinge cover and the upper hinge body to the leg mounting bracket, and a lower hole provided with a pin hole on the front side of the opposing outer wall. A lower leg composed of a lower hinge cover having a hinge body and a cavity for accommodating the lower hinge body and fixing the lower hinge body by a screw, and penetrating through the respective pin holes of the upper hinge body and the lower hinge body, respectively. And a hinge pin that pivotally supports the front side of the hinge body of A cover for closing the space formed between the outer side wall of the upper hinge body and the inner side wall of the upper hinge cover on the rear side of the pivotal support in a state in which the lower leg body is bent and in an upright state. It is composed of and.

(E) Action The present invention closes the space formed between the outer wall of the upper hinge body and the inner wall of the upper hinge cover with the decorative cover,
When the legs are bent, the space is not exposed and the aesthetic sense is not impaired, and dust does not enter.

(F) Embodiments Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an external perspective view of the yagura kotatsu body (1). (2a) (2
b) A plurality of inner rails formed by crossing and combining (2c) and (2d), and (3a), (3b), (3c), and (3d) are a plurality of square rails that surround the outer sides of the inner rails. Outer pier, (4a) (4b)
(4c) and (4d) are leg mounting brackets having a U-shaped cross section, which are fixed to the ends of adjacent outer bars by screws (5) and (5), and have bolt insertion holes (6 ) Is provided and a plurality of locking holes (7) and (7) are formed in the lower surface. Inner pier (2a)
(2b) (2c) (2d), outer crosspieces (3a) (3b) (3c) (3d) and leg mounting brackets (4a) (4b) (4c) (4d) are assembled and fixed to the frame (F). Make up. (8a) (8b) (8c) (8d)
Is a leg body which is fixed to the leg fittings (4a) and is pivotally attached so as to be freely bendable, which will be described in detail below. (9) is an upper hinge body having a U-shaped horizontal cross section formed of a thick metal plate, which has a flat upper surface and is bent downward toward the center of the stopper claw to form inclined portions (10) and (10). (11), (1
1), a bolt hole (12) drilled in the front surface, a plurality of locking claws (13), (13) projecting to the front side at the lower end of the front surface, and a pin hole provided in the lower front side of the opposing outer wall. (14), (14)
The lower end edges of both side walls are provided below the pin holes (14) and (14) to form guide pieces (15) and (15) bent outward. (16) is an upper hinge cover that accommodates the upper hinge body (9) and surrounds the periphery of the upper hinge body, and has a corner with the storage space (18) in which the bearing grooves (17) and (17) are formed. Holes (19) and (19) are formed on both sides of the mounting step (2
0) and (20) are formed, the insertion port (S) is provided in the lower part, and the engagement holes (21) and (21) are formed near the mounting step. (22) is a lock button housed in the housing space (18), which locks the shaft pins (23), (23) provided on one side with the bearing grooves (17), (17), etc. Plural pressure claws (2
4) and (24) are constantly urged upward by the spring (25). (26) is a rubber seat for preventing slippage of the top plate (T) inserted through the square holes (19) and (19) of the upper hinge cover (16), and (27) and (27) are upper hinge bodies (9). ) Is a decorative cover that closes the space (A) between the outer wall of the upper cover (16) and the inner wall of the upper hinge cover (16).
Having elastic pieces (29) having (28), (29) and sliding pieces (31), (31) having hooking claws (30) and (30) at the upper end adjacent to the elastic pieces ing.

(32) is a hinge pin, and (33) is an E-ring for preventing the hinge pin from coming off.

(34) has a horizontal section U made of a thick metal plate.
-Like lower hinge body with multiple pin holes (35), (35) on the front side of the opposing outer walls, and screw insertion holes (3
Seat plates (37) and (37) are formed by drilling 6) and (36). (38) is a fixing base made of synthetic resin, and includes a guide space (39) provided on the front surface and a pair of vertically long ribs (40), (40) and a stopper rib (41) provided on the inner wall of the guide space. )
And fixed step portions (43) and (43) having screw holes (42) and (42) formed on both sides. Reference numeral (44) is an actuator which is arranged in the guide space (39) and is constantly pushed up by a spring (45). The actuator (46) is a stopper (46) for preventing the protrusion from coming up by hitting the stopper rib (41). Hooking claws (48), (4) having inclined parts (47), (47) on
8) and hook-shaped pressing pieces (49) and (49) are formed.

(50) is a cylindrical support leg made of synthetic resin, and has a plurality of elongated holes (51), (51), (51), (51) provided in parallel at the upper part and screw insertion holes at the lower parts on both sides. The lower hinge cover (54) made of synthetic resin having the mounting steps (53) and (53) provided with (52) and (52) and the cavity (K) therein, and the lower hinge cover (5).
It is composed of a hollow leg (55) integrally provided at the bottom of 4). (56) is a leg cap fitted and fixed to the lower end of the leg portion (55).

Next, the assembly sequence will be described.

First, the lower hinge body (34) is inserted into the lower hinge cover (54) from the lower portion of the leg portion (55) and is housed in the cavity (K) of the lower hinge cover (54). ), (35) are exposed from the notches (57), (57) provided on both sides of the mounting stepped portions (53), (53) of the lower hinge cover (54) to expose the seat plates (37), (3).
7) the lower hinge cover (54) mounting steps (53), (53)
The screw insertion holes (36), (36) are aligned with the screw insertion holes (42), (42) on the lower surface of the. Then, the pin holes (14) and (14) of the upper hinge body (9) are aligned with the pin holes (35) and (35) of the lower hinge body (54), and the hinge pin (32) is inserted to insert the E ring (33). ) To prevent the shaft from coming off (H)
Make up.

Then, the actuator (14) and the spring (45) are housed in the guide space (39) of the fixed base (38), and the stopper (46)
With the stopper rib (41) in place, insert the fixed base (38) from the lower part of the leg (55) and insert the seat plates (37) and (37) into the fixed steps (43) and (43). The upper surface of the lower hinge cover (54) and the lower surfaces of the mounting steps (53) and (53) of the lower hinge cover (54) are overlapped, and screws (58) and (58) are inserted into the screw insertion holes (52), (52) and the screw insertion hole. Through (36) and (36), screw holes (4
2) Screw the legs (55), the lower hinge body (34) and the fixed base (38) into one piece by screwing, and then fit the leg cap (56) to the lower end of the legs (55). Fix and configure the lower leg (F ₁ ). At this time, the latching claws (48) and (48) of the actuator (44) and the long holes (51), (51) and (5) of the pressing pieces (49) and (49), respectively.
Face 1) and (51).

Next, insert the rubber seat (26) into the square holes (19) and (19) of the upper hinge cover (16), and at the same time, attach the spring (2) to the front side.
5) The lock button (22) is stored in the storage space (18) while being urged to be constantly pushed upward by the 5), and the upper hinge body (9) is stored in the upper hinge cover (16). Configure the upper leg (F ₂ ). At this time, the rubber seat (26) is clamped and fixed between the inner wall of the upper hinge cover (16) and the upper surface of the upper hinge body (9). A space (A) is formed between the inner wall of (16). This space (A) is determined in order to enlarge the hollow portion inside the upper hinge cover (16) to facilitate the storage of the upper hinge body (9) and to match the shape with the lower hinge cover (54). It is formed by the shape of the formed upper hinge cover.

After that, the cosmetic cover (27), the elastic piece (29) of the (27),
When the (29) is fitted into the guide pieces (15) and (15) and the sliding pieces (31) and (31) are pushed along the outer side wall of the upper hinge body (9), the hooking pieces (30). , (30) are engaged with the engaging holes (21), (21) of the upper hinge cover (16), and the elastic pieces (29),
The protrusions (28) and (28) of (29) are pressed against the outer wall surfaces located above the mounting step portions (53) and (53) on both sides of the lower hinge cover (54), and particularly the shaft support portion (H). ) And the outer side wall of the upper hinge body (9) and the upper hinge cover (54) formed on the rear side of
The space (A) between the inner wall and the inner wall is closed.

In the support leg (50) assembled in this manner, the locking claws (13) and (13) of the upper hinge body (9) are fitted into the locking holes (7) and (7) of the leg mounting bracket (4a). Insert the bolt (59) into the insertion hole (6) of the leg mounting bracket (4a) and screw it into the bolt hole (12) of the upper hinge body (9) to fix it to the kotatsu body (1). It is pivotally attached so that it can be bent.

Thus, when the support leg (50) is to be erected, when the support leg (50) is pulled outward from the bent state to the erected state as shown in FIGS. 4 and 7, the support leg (50) is The protrusions (28) and (28) are brought into sliding contact with the both side walls of the lower hinge cover (54) in accordance with the rotation of (see the locus indicated by the chain double-dashed line of the protrusions (28) and (28) in FIG. 7). The legs (50) gradually rotate without rattling, and at the same time, the sliding pieces (31) and (31) also move along the outer surface of the upper hinge body (9). Support legs (5
When (0) is further rotated, the hook (4) of the actuator (44)
The upper ends of 8) and (48) are in sliding contact with the stopper pieces (11) of the upper hinge body (9) and the inclined portions (10) and (10) of the upper hinge body (9), and the operator (44) accompanying this sliding contact. Lowers against the spring (45).

Eventually, when the support leg (50) is in a completely upright state, the hooks (48) and (48) of the actuator (44) are located in front of the stopper pieces (11) and (11) of the upper hinge body (9). It will be caught in and locked. When the support leg (50) stands up, most of the lower end of the upper hinge body (9) is (indirectly) lowered through a part of the decorative covers (27) and (27) as shown in FIG. Even if the support legs (50) are pulled in the direction of arrow A in FIG. 4 by hitting the mounting steps (53), (53) on both sides of the hinge cover (54), most of the load is lower hinge cover (53). It is transmitted to the upper hinge body (9) from the mounting step portions (53) and (53) of 54), and further transmitted to the leg mounting bracket (4a) by the locking claws (13) and (13). Spread.

Further, the load applied to the hinge pin (32) is transmitted to the upper hinge body (9) and transmitted to the leg fittings by the locking claws (13) and (13) to be dispersed. Attach the support leg (50) to the arrow B in Fig. 4.
When pulled in the direction of arrow A, most of the load is transferred from the mounting steps (53) (53) of the lower hinge cover (54) to the upper hinge body (9) and locked, as in the case of pulling in the direction of arrow A. The hooks (48) (48) and the upper hinge body (9) are distributed to the leg fittings (4a) via the claws (13) (13) and are also hooked on the operating element (44).
It is restrained by the engagement of the stopper claws (11) (11).
Then, when the top plate (T) is placed on the upper surface of the kotatsu body (1) as shown in FIG. 4 and a person rides on the top plate (T), the rubber seat (26) Although the weight is applied to the upper hinge body (9) via the, it is transmitted to the mounting step portions (53) (53) through the upper hinge body (9) and directly transmitted to the support leg (50).

When the support leg (50) is bent, pressing the lock button (22) as shown by the arrow in FIG.
4) (24) presses the pressing pieces (49) (49) and the hooks (48)
Disengage the engagement between (48) and the stopper claws (11) (11), and press the lower part of the support leg (50) in the direction of the arrow in FIG. 5 to bend it. In this way, four support legs (50) (50) (50) (5
FIG. 2 shows a state in which 0) is bent.

FIG. 9 shows another embodiment of the upper hinge body (9), in which flat plate portions (60) (60) bent horizontally are provided at the lower part, and the flat plate portion is directly lowered as shown in FIG. Hinge covers (54)
It is mounted on the mounting step (53) (53). In this case, the lower surface of the decorative covers (61) (61) becomes smaller.

(G) Effect of the Invention As described above, the present invention provides the decorative cover that closes the space formed between the outer wall of the upper hinge body and the inner wall of the upper hinge cover. It is best suited for furniture-style kotatsu, as it prevents dust from entering inside and spider webs and the structure inside the upper hinge cover is hidden so that the inside cannot be seen. In particular, when the legs are bent, the hand does not touch the upper hinge body to cause scratches or burns.

[Brief description of drawings]

FIG. 1 is a perspective view of a kotatsu body provided with a leg device of the present invention, FIG. 2 is a perspective view when the legs are folded, and FIG.
FIG. 4 is an exploded perspective view of an essential part of the figure, FIG. 4 is an enlarged sectional view of an essential part when a top plate is placed, FIG. 5 is an enlarged sectional view of an essential part before the legs are folded, and FIG. FIG. 7 is an enlarged sectional view of a portion, FIG. 7 is an operation explanatory diagram when the leg is folded, FIG. 8 is an enlarged sectional view of a main portion of the leg, and FIG. 9 is a perspective view showing another embodiment of the upper hinge body.
FIG. 10 is an enlarged sectional view of a main part of a leg showing another embodiment. (1) ... Kotatsu body, (2a) (2b) (2c) (2d) ... inner rail, (3a) (3b) (3c) (3d) ... outer rail, (4a) (4b)
(4c) (4d) ... leg mounting bracket, (8a) (8b) (8c) (8d)
... legs, (9) ... upper hinges, (32) ... hinge pins,
(34) ... lower hinge body, (45) ... spring, (50) ... supporting leg, (31) (31) ... sliding piece, (58) (58) ... screw,
(S) ... insertion slot, (A) ... space.

Claims (1)

[Claims] 1. A frame body composed of a plurality of inner rails, a plurality of outer rails formed in a rectangular shape to surround the outer sides of the inner rails, and a leg mounting metal fitting fixed between end portions of the outer rails. And a leg body fixed to the leg mounting member and pivotally attached so as to be bendable. The leg body has an upper hinge body having a pin hole on a lower front side of an opposing outer wall and an upper hinge body for accommodating and surrounding the upper hinge body. An upper leg body composed of a hinge cover, a bolt for fixing the upper hinge cover and the upper hinge body to the leg mounting bracket, a lower hinge body having a pin hole provided on the front side of an opposing outer wall, and the lower hinge body A lower leg body formed of a lower hinge cover to which the lower hinge body is fixed by a screw and a pin hole of each of the upper hinge body and the lower hinge body to pivotally support the front side of each hinge body. And a hinge pin for bending and raising the lower leg. In the state, the leg device of the frame body, which is formed of a decorative cover that closes a space formed between the outer side wall of the upper hinge body and the inner side wall of the upper hinge cover on the rear side of the shaft support portion. .